LINQ to XML返回多個子節點

Question

我試圖從下面的XML結構中返回所有子節點「APIParamter」，並將這些信息添加到某些類中。

這裏是XML結構：

<?xml version="1.0" encoding="utf-8" ?> 
<API> 
<APIColors background="" bordercolor="" textcolor=""></APIColors> 
<APIDetails name="Payroll" description="Everything about IQX Payroll"> 
<![CDATA[Some text  ]]> 
</APIDetails> 
<APICalls> 
      <APICall type="GET" apicalltitle="PayrollNew" apicalldescription="Gets new payroll transactions"> 
        <ImplementationNotes note="">text</ImplementationNotes> 
        <APIParameters> 
           <APIParamter parameter="page" description="indicates type of wervice - always this value" parametertype="" datatype="string" filename="" required="YES">J_PayrollNew</APIParamter> 
           <APIParamter parameter="render" description="response type required - always text_xml" parametertype="" datatype="string" filename="" required="YES">text_xml</APIParamter> 
           <APIParamter parameter="auth" description="userid and password separated by colon" parametertype="" datatype="string" filename="" required="YES">userid:password</APIParamter> 
           <APIParamter parameter="pPayrollCompany" description="optionally limits results to specified payroll company" parametertype="" datatype="string" filename="" required="NO">value</APIParamter> 
           <APIParamter parameter="pTransactionType" description="optionally limits results to specified transaction type. 0 for employee, 2 for timesheet" parametertype="" datatype="numeric" filename="" required="NO">value</APIParamter> 
        </APIParameters> 
      </APICall> 
</APICalls> 
</API> 

這裏的階級結構：

public class TheIQXAPIs 
{ 
    public string Name { get; set; } 
    public string Description { get; set; } 
    public IEnumerable<APICalls> APICalls { get; set; } 
    public string Notes { get; set; } 
} 

public class APICalls 
{ 
    public string Type { get; set; } //Post, get etc. 
    public string APICallTitle { get; set; } 
    public string APICallDescription { get; set; } 
    public string ImplementationNote { get; set; } 
    public IEnumerable<APIParameters> APIParameters { get; set; } 
    public IEnumerable<ResponseMessages> ResponseMessages { get; set; } 
    public string RequestURL { get; set; } 
    public string ResponseBody { get; set; } 
    public string ResponseCode { get; set; } 
    public string ResponseHeaders { get; set; } 

} 

public class APIParameters 
{ 

    public string Parameter { get; set; } 
    public string Value { get; set; } 
    public string Description { get; set; } 
    public string ParameterType { get; set; } 
    public string DataType { get; set; } 
    public string FileName { get; set; } 
    public string Required { get; set; } 
} 

我有以下代碼：

IEnumerable<TheIQXAPIs> TheIQXAPIs = 
    from e in doc.Descendants("API") 
    select new TheIQXAPIs() 
    { 
     Notes = (string)e.Element("APIDetails"), 
     Name = e.Element("APIDetails").Attribute("name").Value, 
     Description = e.Element("APIDetails").Attribute("description").Value, 
     APICalls = from p in e.Descendants("APICall") 
       select new APICalls() 
       { 
        Type = (string)p.Attribute("type"), 
        APICallTitle = (string)p.Attribute("apicalltitle"), 
        APICallDescription = (string)p.Attribute("apicalldescription"), 
        ImplementationNote = (string)p.Element("ImplementationNotes"), 
        APIParameters = from c in p.Descendants("APIParameters") 
             select new APIParameters() 
             { 

              Parameter = (string)c.Element("APIParamter").Attribute("parameter"), 
              Value = (string)c.Element("APIParamter"), 
              Description = (string)c.Element("APIParamter").Attribute("description"), 
              ParameterType = (string)c.Element("APIParamter").Attribute("parametertype"), 
              DataType = (string)c.Element("APIParamter").Attribute("datatype"), 
              FileName = (string)c.Element("APIParamter").Attribute("filename"), 
              Required = (string)c.Element("APIParamter").Attribute("required") 
             } 
        } 
    } 

    ; 

但是當我使用這個：

foreach (TheIQXAPIs TheAPI in TheAPIs) 
{ 
    foreach (APICalls TheAPICall in TheAPI.APICalls) 
    { 
     foreach (APIParameters APIParam in TheAPICall.APIParameters) 
     { 
      TheLabel.Text = APIParam.Parameter; 
      TheLabel2.Text = APIParam.Value; 
      etc...  
     } 
    } 
} 

我只得到第一個孩子，當我期待得到5 我懷疑這是我的LINQ查詢，但我不知道問題出在哪裏。

P.S.爲了發佈，我不得不略微減少代碼，只是爲了讓你意識到這一點。

Answer 1

您需要遍歷APIParameter兒童APIParameters您的選擇：

APIParameters = from c in p.Descendants("APIParameter") 
     select new APIParameters() 
     { 
      Parameter = (string)c.Attribute("parameter"), 
      Value = (string)c.Value, 
      Description = (string)c.Attribute("description"), 
      ParameterType = (string)c.Attribute("parametertype"), 
      DataType = (string)c.Attribute("datatype"), 
      FileName = (string)c.Attribute("filename"), 
      Required = (string)c.Attribute("required") 
     }